Flashcards in Bonding, Structure and Properties of Matter Deck (13):
How are Ions formed?
Ions are formed when electrons are transferred. Ions are charged particles and can be grouped atoms or single atoms.
What happens when metals form ions?
When Metals form ions, they lose electrons from their outer shell to form positive ions.
What groups are most likely to form ions?
Groups 1 and 2 and groups 6 and 7 are most likely to form ions.
What is ionic bonding?
Ionic Bonding is the transfer of electrons.
What is a dot and cross diagram?
A dot and cross diagram is used to show the arrangement of electrons.
Where do atoms share electrons?
They share electrons in their outer shell as the outer shell has the highest energy levels.
What is the structure of Ionic Compounds?
Ionic Compounds have a regular lattice structure and there are very strong electrostatic forces of attraction.
What is Covalent Bonding?
Covalent bonding is where non-metals share electrons by bonding together.
What is a polymer?
A polymer is a long chain of repeating units. They are linked together to form a long molecule that has repeating sections.
What are the properties of giant covalent structures?
One property is that they have very high melting and boiling points. The atoms are linked together by strong covalent bonds. Another is that they don't conduct electricity.
What are the allooetropes of Carbon?
The allotropes of Carbon are Diamond, Graphite, Graphene and Fullerenes. Diamond is very hard and has a giant covalent structure. The strong covalent bonds take a lot of energy to break therefore diamond has a very high melting point. Graphite contains sheets of hexagons and Graphite also has a high melting point like Diamond. Fullerenes form spheres and tubes and are molecules of carbon. Fullerenes have a high surface area.
What is Metallic Bonding and what does it involve?
Metallic Bonding involves delocalised Electrons. They also consist of a giant structure. The electrons in the outer shell are delocalised which means they are free to move around. There are strong forces of electrostatic attraction.